本文介绍了由哈尔滨理工大学等单位研制的甜菜多参数自动检测仪的工作原理、结构及在设计、研制过程中采取的主要技术措施。该仪器可自动称量并记录根重，准确检测、采集样品浸提液的含糖率、钾、钠及α－Ｎ等参数含量；自动生成数据文件，并根据不同要求处理数据。该设备使用方便，检测结果可靠。 This paper introduces the working principle and structure of beet multi-parameter automatic detector developed by Harbin Institute of Technology and other units and the main technical measures taken in the process of design and development. The instrument can automatically weigh and record the root weight, accurate detection, collecting the sample extract of the sugar content, potassium, sodium and α-N and other parameters; automatically generate data files and data processing according to different requirements. The device is easy to use, reliable test results.